Results 11 to 20 of about 576 (111)

Covalent Adduct Formation in Methylthio‑d‑ribose-1-phosphate Isomerase: Reaction Intermediate or Artifact?

open access: yes, 2022
Methylthio-d-ribose-1-phosphate (MTR1P) isomerase (MtnA) functions in the methionine salvage pathway by converting the cyclic aldose MTR1P to its open-chain ketose isomer methylthio-d-ribulose 1-phosphate (MTRu1P).
Andrew S. Murkin (198331)   +2 more
core   +1 more source

Novel MnIIMnIIIMnII Trinuclear Complexes with Carbohydrate Bridges Derived from Seven-Coordinate Manganese(II) Complexes with N-Glycoside

open access: yes, 2016
Reactions of MnX2·nH2O with tris(N-(d-mannosyl)-2-aminoethyl)amine ((d-Man)3-tren), which was formed from d-mannose and tris(2-aminoethyl)amine (tren) in situ, afforded colorless crystals of [Mn((d-Man)3-tren)]X2 (3a, X = Cl; 3b, X = Br; 3c, X = NO3; 3d,
Saori Tamakoshi (2979075)   +5 more
core   +2 more sources

Stereochemical aspects of the interaction between isomerases and their substrates

open access: yes, 1976
The work presented in this thesis is concerned with the mechanism of two enzymes of the glycolytic pathway, each of which catalyzes an aldose-ketose isomerization.
Webb, Martin R.
core   +2 more sources

Crystal structure of Ruminococcus albus cellobiose 2-epimerase: Structural insights into epimerization of unmodified sugar

open access: yes, 2013
Enzymatic epimerization is an important modification for carbohydrates to acquire diverse functions attributable to their stereoisomers. Cellobiose 2-epimerase (CE) catalyzes interconversion between d-glucose and d-mannose residues at the reducing end of
Tanaka, Isao   +6 more
core   +1 more source

Heterogeneous Catalytic Transformations of Saccharides by Sn Lewis Acid: Recent Progress

open access: yesChemCatChem, Volume 18, Issue 2, 28 January 2026.
The review addresses recent advances in heterogeneous catalytic transformations of lignocellulosic saccharides by tin‐containing materials. ABSTRACT Carbohydrates have been considered as important renewable substrates which are readily available in large quantities from waste streams.
Irina Delidovich
wiley   +1 more source

Structure of l‐rhamnose isomerase in complex with l‐rhamnopyranose demonstrates the sugar‐ring opening mechanism and the role of a substrate sub‐binding site

open access: yesFEBS Open Bio, Volume 3, Issue 1, Page 35-40, January 01, 2013., 2013
l‐Rhamnose isomerase (l‐RhI) catalyzes the reversible isomerization of l‐rhamnose to l‐rhamnulose. Previously determined X‐ray structures of l‐RhI showed a hydride‐shift mechanism for the isomerization of substrates in a linear form, but the mechanism for opening of the sugar‐ring is still unclear.
Hiromi Yoshida   +5 more
wiley   +1 more source

Overexpression of Transketolase Relieves xylA Repression and Enhances Xylose Utilization in Saccharomyces cerevisiae During Mixed Sugar Fermentation

open access: yesGCB Bioenergy, Volume 17, Issue 7, July 2025.
To overcome the bottleneck of inefficient xylose utilization in lignocellulosic bioethanol production, we constructed a recombinant Saccharomyces cerevisiae strain (INVSc‐xylA‐Xltr1p‐TKL1) by overexpressing the transketolase gene TKL1. This engineering strategy significantly enhanced xylose consumption by 33%, upregulated xylose isomerase (xylA ...
Si Xu   +5 more
wiley   +1 more source

Sugar Alcohols, Caries Incidence, and Remineralization of Caries Lesions: A Literature Review

open access: yesInternational Journal of Dentistry, Volume 2010, Issue 1, 2010., 2010
Remineralization of minor enamel defects is a normal physiological process that is well known to clinicians and researchers in dentistry and oral biology. This process can be facilitated by various dietary and oral hygiene procedures and may also concern dentin caries lesions.
Kauko K. Mäkinen, Figen Seymen
wiley   +1 more source

Analysis of carbohydrates and glycoconjugates by matrix‐assisted laser desorption/ionization mass spectrometry: An update for 2021–2022

open access: yesMass Spectrometry Reviews, Volume 44, Issue 3, Page 213-453, May/June 2025.
Abstract The use of matrix‐assisted laser desorption/ionization (MALDI) mass spectrometry for the analysis of carbohydrates and glycoconjugates is a well‐established technique and this review is the 12th update of the original article published in 1999 and brings coverage of the literature to the end of 2022.
David J. Harvey
wiley   +1 more source

Distribution and phylogenies of enzymes of the Embden‐Meyerhof‐Parnas pathway from archaea and hyperthermophilic bacteria support a gluconeogenic origin of metabolism

open access: yesArchaea, Volume 1, Issue 3, Page 199-221, 2003., 2003
Enzymes of the gluconeogenic/glycolytic pathway (the Embden‐Meyerhof‐Parnas (EMP) pathway), the reductive tricarboxylic acid cycle, the reductive pentose phosphate cycle and the Entner‐Doudoroff pathway are widely distributed and are often considered to be central to the origins of metabolism.
Ron S. Ronimus, Hugh W. Morgan
wiley   +1 more source

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